The movies have tried to show us several times who is the creator, founder or owner of the Weyland-Yutani company.
The first one is "Bishop II", who is assumed to be a clone of the owner of the Weyland-Yutani.
Karl Bishop Weyland introduced in AvP was an explorer who discovered first the Aliens and Predators.
Peter Weyland is an investigator that wanted to discover where the life on Earth came from, and the secret of eternal life.
Which one is your favorite?